Sign fixture



FIG. 1 is a perspective view of the sign fixture showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof; the rear elevational view thereof being identical to said front elevational view; and,

FIG. 5 is a left side elevational view thereof, the right side elevational view thereof being identical to said left side elevational view.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a sign fixture, as shown and described. 